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If the near-point distance of the jeweler is 21.8cm , and the focal length of the magnifying glass is 7.50 cm, find the angular magnification when the diamond is held 5.74cm from the magnifying glass. Assume the magnifying glass is directly in front of the jeweler's eyes.
A loudspeaker of mass 22 {rm kg} is suspended a distance of h = 2 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
A 110 ball and a 250 ball are related by a 38--long, massless, rigid rod. The balls rotate about their center of mass at 150 what is the speed of the 110 ball.
Explain how much force must you exert to keep the pole motionless and horizontal?
find the potential energy at each location below. How far from the point of the drop will the rock hit the ground.
A saturated solution of strontium hydroxide is prepared in the excess solid Sr(OH)2 is allowed to settle. A 25.0mL aliquot of the saturated solution is withdrawn and transfer to an Erlenmeyer flask
A tetherball leans against the smooth, frictionless post to which it is attached, What is the force the pole exerts on the ball
One mole of a ideal gas initially at temp To=0C undergoes an expansion at a constant pressure of 1atm to four times it original volume
What is the horizontal distance between elbow and the point where the weight of the forearm acts.
A 3.40-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the maximum acceleration of the object
Physics: Standing Waves, Second Harmonic, Two pieces of steel wire with identical cross-sections have lengths of L and 2L. Each of the wires is fixed at both ends and stretched so that the tension in the longer wire is three times greater than tha..
A steel aircraft carrier is 370 m long when moving through the icy North Atlantic at a temperature of 2°C. By how much does the carrier lengthen when it is travelling in the warm Mediterranean Sea at the temperature of 21 °C.
A small, 300 cart is moving at 1.90 on an air track when it collides with a larger, 1.00 cart at rest. After the collision, the small cart recoils at 0.890. Evaluate the speed of the large cart after the collision?
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